NORMSERVIS s.r.o.

GB/T 39542.2-2025

Mechanical pencils for technical drawings—Part 2:Black leads—Classification and dimensions

STANDARD published on 30.5.2025

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The information about the standard:

Designation standards: GB/T 39542.2-2025
Publication date standards: 30.5.2025
Country: Chinese technical standard
Category: Technical standards GB